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Dunking into the Lipid Bilayer: How Direct Membrane Binding of Nucleoporins Can Contribute to Nuclear Pore Complex Structure and Assembly

Journal

CELLS
Volume 10, Issue 12, Pages -

Publisher

MDPI
DOI: 10.3390/cells10123601

Keywords

amphipathic helix; ALPS motif; membrane curvature; Nup155; Nup53; Y-complex; Nup153

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Nuclear pore complexes mediate selective and efficient transport between the cytoplasm and the nucleus, with a complex structure involving transmembrane proteins and nucleoporins interacting with membrane. These protein interactions play a crucial role in NPC assembly, stability, function, and membrane shaping.
Nuclear pore complexes (NPCs) mediate the selective and highly efficient transport between the cytoplasm and the nucleus. They are embedded in the two membrane structure of the nuclear envelope at sites where these two membranes are fused to pores. A few transmembrane proteins are an integral part of NPCs and thought to anchor these complexes in the nuclear envelope. In addition, a number of nucleoporins without membrane spanning domains interact with the pore membrane. Here we review our current knowledge of how these proteins interact with the membrane and how this interaction can contribute to NPC assembly, stability and function as well as shaping of the pore membrane.

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